So I got some more Piranas cards and am beginning to get into the clan. I see that Calliope came out with a DR ability. However, I don't think it's as good as Ulrich and her ability is conditional. Is she still worth putting in a mono Piranas deck?

Also, if Calliope didn't have reprisal, would she be OP and receive an ELO ban like Ulrich?

If she didn't have reprisal, she would be more useful and can be an offensive threat and maybe will make her at the same level as Marina, but not make her perma-banned. The current Calliope is just okay, 6 power is a huge disadvantage even she has SOB and a 4 star without attacking potential is usually not very common.

In a Mono Pirana deck, you'd be better splashing a Spiaghi if i'm honest. Piranas don't usually need a DR there a 3 round win clan most of the time. Raeth and Coleridge are better, so is Scubb. No room for Calliope.

Azeem don't forget Kristin, saved my ass countless times
Nothing gives you more pleasure than winning the first round when you play first and then see your opponent waste a card because he thinks Kristin comes next.